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Mathematics

1 answer:

makvit [3.9K]3 years ago

7 0

The answer is A)$25.60

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sineoko [7]

$a-b=21 \ \ \ |\times (-2) \\
5a-2b=18 \\ \\
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\underline{5a-2b=18 \ \ \ \ \ \ \ } \\
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